Finding the Fourth Proportional to 71,230,259.99, 98,296,794.21 and 39,868,299.65
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Solution
The fourth proportional to 71,230,259.99, 98,296,794.21 and 39,868,299.65 is: 55,017,713.63
Step by Step Solution
- Step 1: Write the proportion equation
71,230,259.99 : 98,296,794.21 = 39,868,299.65 : x - Step 2: Convert to fraction form
71,230,259.99/98,296,794.21 = 39,868,299.65/x - Step 3: Cross multiply
71,230,259.99x = 98,296,794.21 × 39,868,299.65 - Step 4: Simplify right side
71,230,259.99x = 3,918,926,045,707,181 - Step 5: Solve for x
x = 3,918,926,045,707,181/71,230,259.99 - Step 6: Final answer
x = 55,017,713.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.